LIST OF FIGURES 
ro 
a Head of Dinichthys. | "6. PAGE 
pace| 90. Pleuracanthus. . Pex 
ay 2. Moving fishes, shark and go. Teeth of Miculachuthis - 84 
eel . : .  2| 90B. HeadroofofPleuracanthus 84 
} 3- Spanish mackeeel = , uerah we SB] OX. Cesteacion .. ‘se im» SS 
4. Front view of Spanish g2. Chlamydoselache. . . . 87 
: mackerel . . . 4| 93. Heptanchus .... . 88 
f 5-8. Numerical lines of fishes - §| 94.Squalus. . .... . 89 
- 9-12. Gills of fishes . . .17, 259] 95. Alopias. . . » . - - 89 
13-19. Air-bladder . . . .22, 265) 96. lamna. .... + + 90 
20-31. Teeth and scales . . . 24} 96A.Cetorhinus . . . . . 90 
32-38. Finspines . . . . . 29| 96B. Lemargus ... . . QI 
39-43. Unpaired fins . . . 32,33] 97- Squatina . . . . ~~ QI 
44-48. Caudalfin . . . . . 37| 98,984. Pristis . . . - + 92 
49-54. Pairedfins . . . 42| 99. Pristiophorus . . . . . 93 
55-60. Barbels and sense organs 47| 100. Rhinobatis. . . . . - 93 
61-68. Mucous camals . . . - 50/101. Raja. . . .. s+ + 94 
69. General anatomy of ae 102. Torpedo. . . 95 
stome. . - -+ 58| 102A. Dicerobatis (Cepbalop 
69A. Skeleton of laniprey . « « 58 tera) . 96 
70-72A-D. Bdellostoma, Myx- 103. Shark sbylopeey ai 98 
ine, Petromyzon . . 60, 61| 104. General anatomy of Chtinsern 100 
73. Paleospondylus. . . . - 65| 105. Skeleton of Chimera . . 102 
74- Pteraspis. . - - - + + 66/1054. Ischyodus . . . . « 104 
75- Paleaspis. . - - + 66] 106. Myriacanthus . . . . . 105 
76, 77. Plates of Preraspis . - + 66) 106A. Squaloraja . . » 105 
78,79. Cephalaspis. . . . . 66/1068, Cc. Derm plates of ‘Myria- 
80-82. Pterichthys . . . - 68 canthus. . - 105 
83. General anatomy of shack - 73| 107-112. Dental plates FP Chime. 
84. Skeleton of shark . . «75, 255 a ae - 106 
85. Vertebree of shark . . . . 76|113-116A. Spines and claspess 
86, 86A. Cladoselache. . . . 79 of Chimzroids . . . . 107 
868. Teeth of Cladoselache . . 80/117. Harriotta . . . . . . 108 
87. Acanthodes . . . - « 81]118. Callorhynchus. . . . . 109 
88. Acanthodes, giaareta: ee ie ee reef | 
88a. Acanthodes, teeth . . . 82/120, Chimera, young . . . ut 
89. Climatius . . . » » 82\| 121, General anatomy of lung-Gsh 117 
